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* @license GNU General Public License version 2 or later; see LICENSE.txt */ namespace Joomla\CMS\Form\Field; \defined('JPATH_PLATFORM') or die; use Joomla\CMS\Access\Access; use Joomla\CMS\Factory; use Joomla\CMS\Form\FormField; use Joomla\CMS\Helper\UserGroupsHelper; use Joomla\Database\ParameterType; /** * Form Field class for the Joomla Platform. * Field for assigning permissions to groups for a given asset * * @see JAccess * @since 1.7.0 */ class RulesField extends FormField { /** * The form field type. * * @var string * @since 1.7.0 */ protected $type = 'Rules'; /** * Name of the layout being used to render the field * * @var string * @since 4.0.0 */ protected $layout = 'joomla.form.field.rules'; /** * The section. * * @var string * @since 3.2 */ protected $section; /** * The component. * * @var string * @since 3.2 */ protected $component; /** * The assetField. * * @var string * @since 3.2 */ protected $assetField; /** * The parent class of the field * * @var string * @since 4.0.0 */ protected $parentclass; /** * Method to get certain otherwise inaccessible properties from the form field object. * * @param string $name The property name for which to get the value. * * @return mixed The property value or null. * * @since 3.2 */ public function __get($name) { switch ($name) { case 'section': case 'component': case 'assetField': return $this->$name; } return parent::__get($name); } /** * Method to set certain otherwise inaccessible properties of the form field object. * * @param string $name The property name for which to set the value. * @param mixed $value The value of the property. * * @return void * * @since 3.2 */ public function __set($name, $value) { switch ($name) { case 'section': case 'component': case 'assetField': $this->$name = (string) $value; break; default: parent::__set($name, $value); } } /** * Method to attach a Form object to the field. * * @param \SimpleXMLElement $element The SimpleXMLElement object representing the `
` tag for the form field object. * @param mixed $value The form field value to validate. * @param string $group The field name group control value. This acts as an array container for the field. * For example if the field has name="foo" and the group value is set to "bar" then the * full field name would end up being "bar[foo]". * * @return boolean True on success. * * @see FormField::setup() * @since 3.2 */ public function setup(\SimpleXMLElement $element, $value, $group = null) { $return = parent::setup($element, $value, $group); if ($return) { $this->section = $this->element['section'] ? (string) $this->element['section'] : ''; $this->component = $this->element['component'] ? (string) $this->element['component'] : ''; $this->assetField = $this->element['asset_field'] ? (string) $this->element['asset_field'] : 'asset_id'; } return $return; } /** * Method to get the field input markup for Access Control Lists. * Optionally can be associated with a specific component and section. * * @return string The field input markup. * * @since 1.7.0 * @todo: Add access check. */ protected function getInput() { // Initialise some field attributes. $section = $this->section; $assetField = $this->assetField; $component = empty($this->component) ? 'root.1' : $this->component; // Current view is global config? $this->isGlobalConfig = $component === 'root.1'; // Get the actions for the asset. $this->actions = Access::getActionsFromFile( JPATH_ADMINISTRATOR . '/components/' . $component . '/access.xml', "/access/section[@name='" . $section . "']/" ); // Iterate over the children and add to the actions. foreach ($this->element->children() as $el) { if ($el->getName() === 'action') { $this->actions[] = (object) array( 'name' => (string) $el['name'], 'title' => (string) $el['title'], 'description' => (string) $el['description'], ); } } // Get the asset id. // Note that for global configuration, com_config injects asset_id = 1 into the form. $this->assetId = (int) $this->form->getValue($assetField); $this->newItem = empty($this->assetId) && $this->isGlobalConfig === false && $section !== 'component'; $parentAssetId = null; // If the asset id is empty (component or new item). if (empty($this->assetId)) { // Get the component asset id as fallback. $db = Factory::getDbo(); $query = $db->getQuery(true) ->select($db->quoteName('id')) ->from($db->quoteName('#__assets')) ->where($db->quoteName('name') . ' = :component') ->bind(':component', $component); $db->setQuery($query); $this->assetId = (int) $db->loadResult(); /** * @to do: incorrect info * When creating a new item (not saving) it uses the calculated permissions from the component (item <-> component <-> global config). * But if we have a section too (item <-> section(s) <-> component <-> global config) this is not correct. * Also, currently it uses the component permission, but should use the calculated permissions for achild of the component/section. */ } // If not in global config we need the parent_id asset to calculate permissions. if (!$this->isGlobalConfig) { // In this case we need to get the component rules too. $db = Factory::getDbo(); $query = $db->getQuery(true) ->select($db->quoteName('parent_id')) ->from($db->quoteName('#__assets')) ->where($db->quoteName('id') . ' = :assetId') ->bind(':assetId', $this->assetId, ParameterType::INTEGER); $db->setQuery($query); $this->parentAssetId = (int) $db->loadResult(); } // Get the rules for just this asset (non-recursive). $this->assetRules = Access::getAssetRules($this->assetId, false, false); // Get the available user groups. $this->groups = $this->getUserGroups(); // Trim the trailing line in the layout file return trim($this->getRenderer($this->layout)->render($this->getLayoutData())); } /** * Method to get the data to be passed to the layout for rendering. * * @return array * * @since 4.0.0 */ protected function getLayoutData() { $data = parent::getLayoutData(); $extraData = array( 'groups' => $this->groups, 'section' => $this->section, 'actions' => $this->actions, 'assetId' => $this->assetId, 'newItem' => $this->newItem, 'assetRules' => $this->assetRules, 'isGlobalConfig' => $this->isGlobalConfig, 'parentAssetId' => $this->parentAssetId, 'component' => $this->component, ); return array_merge($data, $extraData); } /** * Get a list of the user groups. * * @return array * * @since 1.7.0 */ protected function getUserGroups() { $options = UserGroupsHelper::getInstance()->getAll(); foreach ($options as &$option) { $option->value = $option->id; $option->text = $option->title; } return array_values($options); } }